Bobbin-shaft attachment for twister-fliers.



PATENTED MAY 1, 1906.

P. HARDMAN. BOBBIN SHAFT ATTACHMENT FOR TWISTER PLIERS.

APPLICATION FILED SBPT.8, 1905.

Suva/whoa PErERf/ARDMA/V PETER HARDMAN, OF \VILLIMANTIC, CONNECTICUT, ASSIGNOR TO THE AMERICAN THREAD COMPANY, CORPORATION OF NETV JERSEY.

OF JERSEY CITY, NETV JERSEY, A

BOBBlN-SHAFT ATTACHMENT FOR TWlSTER-FLIERS.

Specification of Letters Patent.

Patented May 1, 1906.

Application filed September 8,1905. Serial No. 277,523.

To wZZ whom it may concern:

Be it known that I, PETER HARDMAN, a citizen of the United States, residing at W'illimantic, county of Tvindham, Connecticut, have invented certain new and useful Improvements in Bobbin-Shaft Attachments .t'or Twister-Fliers, of which the following is a full, clear, and exact description My invention relates to machines known as twister-fliers, and particularly to an attachment tor the shaft of the bobbin.

This invention is an improvement adapted to be employed on a machine of the type shown in Patent No. 808,084, granted December 26, 1905, on my former application, tiled November 10, 1900. In machines of this character the flier is driven at a substan tially constant speed. The threads to be wound are drawn through the flier, and their speed or rate of speed is controlled by a power-driven roller. The bobbin itself is rotated by the pull of the thread being wound, but in contact with a power-driven member, so that its speed may be greater than if rotated on a stationary spindle. More work can thus be accomplished. This present impro velnent aims to reduce losses of power, to obtain greater regularity of operation, and to provide a convenient means for adjusting the resistance to rotation.

The invention consists in improvements the principles of which are illustrated in the accompanying single sheet of drawings.

It contemplates the employment of a stationary spindle, a sleeve rotatably mounted thereon adapted to carry a bobbin or spool, a pulley mounted to rotate relative to the sleeve, and means for creating a frictional resistance between the pulley and the sleeve which may be varied in amount as desired.

Figure l is a longitudinal section of the improvements of my invention. Fig. 2 is an end view of the bobbin or spool mounted on the spindle and sleeve. Fig. 3 is a vertical section taken on a plane through the pulley. Fig. 4 is an end view of one of the details. Fig. 5 is a similar view of a spring.

1 is the stationary spindle-that is, non-rotatable. It is customarily mounted to reciprocate longitudinally as the thread is be ing wound.

2 is a sleeve mounted to rotate on the spindie.

3 is a cap having a recess registering with the pin 4, carried by the end of the spindle, for preventing its rotation.

5 is a screw for rcmovably attaching the cap to the spindle.

6 is a channel or groove in the spindle for conveying a lubricant.

7 is a flange integral with the sleeve. 5 is a screw mounted therein and adapted to re movably secure the bobbin 9 in position. 10 is a second flange, having a collar 1 1, provided with a groove 12, which corresponds with the projection 13 on the sleeve 2.

14 is a pulley mounted on the collar ll to rotate relative thereto. 15 is a groove in the collar for conveying a lubricant to this bearing. Suitable washcrs t'or instance, of leatherare provided between the sides of the pulley and the adjacent flanges.

I6 is a spring-frame or spider.

17 is a nut operable on a sewe -threaded portion of the sleeve 2 for adjusting the pressure of the spring 16.

18 is acheck-nut.

When the device is in operation, the pulley l t is rotated from a counter-shaft, and the bobbin 9 is rotated by the pull of the thread being wound, but at a greater angular speed than the pulley l t. The sleeve 2 and the flanges 7 and 10, being connected to the bobbin 9, rotate therewith, but at a rate controlled by the frictional resistance afl'orded by the pulley H. Since the feed of strands to the flier in this machine is positively con trolled, the angular speed of the bobbin 9 will remain practically constant. The tension of the thread depends upon the frictional retardation aflorded by the pulley, and this retardation may be adjusted or regulated so as to obtain the tension desired by simply adjusting the nuts 17 and l8, so as to change the pressure of the spring 16.

What I claim is- 1. An attachment for a twister-flier, comprising a spindle, a sleeve adapted to carry a bobbin and rotate. therewith on said spindle, two flanges rotatable with said sleeve, one of said flanges being longitudinally movable, a rotatable pulley between said flanges, and an adjustable spring for varying the frictional engagement of the pulley with said flanges.

2. An attachment for a flier-twister, comprising a sleeve adapted to carry a bobbin and rotate therewith, said sleeve having a flange integral therewith, a second flange having a collar longitudinally movable but keyed to rotate with said sleeve, a pulley 5 mounted between said flanges, and a spring pressing against said movable flange.

3. An attachment for a flier-twister, comprising a'hollow rotatable sleeve having a flange proj eoting therefrom, a pulley mounted to rotate relative to said flange, and ad- IO justable spring-pressed means for varying the frictional engagement between said pulley and said flange.

PETER HARDMAN.

Witnesses E. S. Boss, DWIGHT A. LYMAN. 

